Load Specifications
Load data in caliber .300 Savage with .308 | 150gr | Barnes MRX BT bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and Hodgdon H335.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 47,253 psi | 89% | 2444 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 46,760 psi | 88% | 2520 fps | 99.8% |
| Accurate 2460 | <<locked>> | 94% | 45,411 psi | 86% | 2520 fps | 97.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,623 psi | 71% | 2441 fps | 99% |
| Accurate 2520 | <<locked>> | 98% | 45,614 psi | 86% | 2562 fps | 97.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 35,085 psi | 66% | 2405 fps | 96% |
| Accurate LT-30 | <<locked>> | 88% | 45,368 psi | 86% | 2411 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 88% | 45,818 psi | 87% | 2421 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 88% | 47,688 psi | 90% | 2500 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 45,585 psi | 86% | 2539 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,470 psi | 88% | 2595 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 94% | 47,761 psi | 90% | 2549 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 46,224 psi | 87% | 2464 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 46,383 psi | 88% | 2451 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 46,862 psi | 89% | 2490 fps | 96.3% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 46,586 psi | 88% | 2592 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 94% | 47,137 psi | 89% | 2566 fps | 99% |
| Hodgdon H335 | <<locked>> | 92% | 45,049 psi | 85% | 2536 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 86% | 47,311 psi | 89% | 2457 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,952 psi | 60% | 1535 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,859 psi | 83% | 2572 fps | 99.2% |
| IMR 4198 | <<locked>> | 92% | 47,152 psi | 89% | 2493 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 47,297 psi | 89% | 2425 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 46,586 psi | 88% | 2539 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 94% | 45,440 psi | 86% | 2520 fps | 96.4% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 43,033 psi | 81% | 2530 fps | 96.8% |
| Lovex S053 | <<locked>> | 82% | 46,354 psi | 88% | 2385 fps | 100% |
| Norma 200 | <<locked>> | 90% | 47,877 psi | 90% | 2533 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 44,860 psi | 85% | 2533 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,575 psi | 60% | 1568 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 46,862 psi | 89% | 2457 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 46,717 psi | 88% | 2536 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 98% | 45,919 psi | 87% | 2516 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 88% | 46,586 psi | 88% | 2539 fps | 97.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 43,033 psi | 81% | 2530 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 47,747 psi | 90% | 2264 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 46,267 psi | 87% | 2546 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 46,180 psi | 87% | 2516 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 45,730 psi | 86% | 2454 fps | 97.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,740 psi | 73% | 2352 fps | 97.3% |
| Somchem S321 | <<locked>> | 96% | 47,326 psi | 89% | 2569 fps | 96.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,920 psi | 89% | 2497 fps | 98.8% |
| Vihtavuori N120 | <<locked>> | 88% | 47,892 psi | 90% | 2457 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 45,876 psi | 87% | 2464 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,674 psi | 90% | 2500 fps | 99.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,465 psi | 75% | 2454 fps | 99.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 42,496 psi | 80% | 2467 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,756 psi | 77% | 2454 fps | 96.7% |
| Winchester 748 | <<locked>> | 98% | 44,991 psi | 85% | 2562 fps | 96.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 41,307 psi | 78% | 2352 fps | 99.7% |
| Accurate 2015 | <<locked>> | 82% | 28,050 psi | 53% | 2159 fps | 95.8% |
| Accurate 2460 | <<locked>> | 88% | 36,883 psi | 70% | 2369 fps | 95.6% |
| Accurate 2495 | <<locked>> | 90% | 26,585 psi | 50% | 2201 fps | 95.7% |
| Accurate 2520 | <<locked>> | 92% | 36,825 psi | 70% | 2405 fps | 95% |
| Accurate 4064 | <<locked>> | 98% | 32,648 psi | 62% | 2352 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 35,505 psi | 67% | 2234 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 82% | 38,101 psi | 72% | 2283 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 36,898 psi | 70% | 2329 fps | 100% |
| ADI AR 2219 | 31.3 gr | 80% | 32,518 psi | 61% | 2287 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 24,323 psi | 46% | 2116 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,748 psi | 58% | 2231 fps | 97.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,261 psi | 72% | 2329 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,460 psi | 63% | 2218 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 94% | 44,309 psi | 84% | 2448 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 98% | 43,511 psi | 82% | 2539 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 82% | 31,691 psi | 60% | 2267 fps | 95% |
| Hodgdon H335 | 34.8 gr | 86% | 36,535 psi | 69% | 2379 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 39,218 psi | 74% | 2320 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,293 psi | 44% | 1368 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 29,936 psi | 57% | 2277 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 33,054 psi | 62% | 2238 fps | 99.1% |
| IMR 4227 | <<locked>> | 80% | 44,831 psi | 85% | 2388 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 40,103 psi | 76% | 2431 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 92% | 42,366 psi | 80% | 2467 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 96% | 37,275 psi | 70% | 2428 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 43,642 psi | 82% | 2346 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,751 psi | 66% | 2306 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 34,606 psi | 65% | 2343 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,119 psi | 44% | 1401 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,164 psi | 83% | 2415 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 38,450 psi | 73% | 2388 fps | 95% |
| Rottweil R 901 | <<locked>> | 90% | 36,027 psi | 68% | 2336 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 84% | 40,103 psi | 76% | 2431 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 96% | 37,275 psi | 70% | 2428 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,509 psi | 77% | 2165 fps | 100% |
| SNPE Vectan SP 10 | 33.2 gr | 82% | 35,041 psi | 66% | 2339 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,604 psi | 60% | 2238 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 35,766 psi | 68% | 2277 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 32,358 psi | 61% | 2221 fps | 95.3% |
| Somchem S321 | <<locked>> | 94% | 43,859 psi | 83% | 2510 fps | 95.2% |
| Somchem S335 | <<locked>> | 88% | 32,213 psi | 61% | 2228 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 37,086 psi | 70% | 2293 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,805 psi | 56% | 2159 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 82% | 27,485 psi | 52% | 2110 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 88% | 27,035 psi | 51% | 2178 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 94% | 34,969 psi | 66% | 2326 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 96% | 35,940 psi | 68% | 2359 fps | 95.2% |
| Winchester 748 | <<locked>> | 96% | 42,076 psi | 79% | 2510 fps | 95.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 49 powders for .300 Savage loaded with the .308 | 150gr | Barnes MRX BT. Alliant AR-Comp delivers the highest muzzle velocity at 2,595 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,595 fps. Accurate 2495 gives the best case fill at 100 %, and 49 of the 49 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant AR-Comp reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for .300 Savage with the .308 | 150gr | Barnes MRX BT they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.